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SubjectRe: [PATCH 6/9] slab: introduce alien_cache
On Fri, 14 Feb 2014, Joonsoo Kim wrote:

> Currently, we use array_cache for alien_cache. Although they are mostly
> similar, there is one difference, that is, need for spinlock.
> We don't need spinlock for array_cache itself, but to use array_cache for
> alien_cache, array_cache structure should have spinlock. This is needless
> overhead, so removing it would be better. This patch prepare it by
> introducing alien_cache and using it. In the following patch,
> we remove spinlock in array_cache.

Acked-by: Christoph Lameter <>

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